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1.
Artículo en Inglés | MEDLINE | ID: mdl-38851960

RESUMEN

A questionnaire-based study was jointly organised by European Board and College of Obstetrics and Gynaecology and European Society of Contraception to evaluate the current status as regards access and quality of care regarding contraception, abortion care, and pre-conceptional counselling and care among the 26 European countries. There are considerable variations among these countries as regards the provision of contraceptive services and abortion care. There is ample room for improvement through European training and education programs. However, the most important difference is the absence of a comprehensive network of healthcare providers in various countries to deliver these services at different points of access. There is notable absence of educational programs and instructional materials tailored specifically for nurses and midwives in several countries. This deficiency impedes the professional development and skills enhancement of these healthcare professionals, potentially compromising the quality of healthcare services provided to women in these countries.

2.
Birth ; 2024 Mar 19.
Artículo en Inglés | MEDLINE | ID: mdl-38504477

RESUMEN

OBJECTIVE: To describe changes in attitudes and expectations of labor over the previous six decades, comparing the Iraqi generation who labored at home without medical assistance with their descendants. STUDY DESIGN: We used semi-structured telephone interviews with 22 women across three generations of one extended family living and giving birth in Iraq between the 1950s and the 2010s. Qualitative data were analyzed thematically using open, axial, and selective coding. RESULTS: Each generation experienced a paradigm shift in childbirth, from exclusive home births to hospital-directed maternity care, to a trend that favors planned cesarean birth, driven by generation-specific changes in outlook. Emerging themes included social influences, changing technology, and medical professionals' recommendations; all of these affected attitudes toward childbirth and pregnancy. There were generational disconnects in perceptions concerning the reasons childbirth has changed over the past 60 years, with the youngest generation citing wider pressures regarding body image and marital relationships as two of the factors affecting preferences in childbirth options. CONCLUSIONS: Societal changes and availability of healthcare services affect women's choices and experiences of childbirth. To be successful, efforts to improve women's experiences in labor, as well as maternal and neonatal outcomes, must consider these wider sociocultural issues.

3.
AJOG Glob Rep ; 3(4): 100266, 2023 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-37854030

RESUMEN

Ethinylestradiol and drospirenone combined oral contraceptive formulations have been marketed for >20 years. Drospirenone has antimineralocorticoid and anti-androgenic effects that may offer several health benefits. Recently, 2 new drospirenone-containing oral contraceptives entered the market, 1 as a progestin-only pill containing 4 mg drospirenone and the other as a combined oral contraceptive containing 15 mg estetrol and 3 mg drospirenone. Estetrol has a unique differential effect on nuclear and membrane estrogen α-receptors when compared with other estrogens, leading to low impact on the liver, breast, and hemostasis parameters and a beneficial effect on the endometrium, vagina, cardiovascular system, bone, and brain. Phase 3 clinical studies demonstrated that the Pearl Index (pregnancies per 100-woman-years) for drospirenone alone is 4.0 in the United States and 0.93 in the European Union and for the estetrol-drospirenone combination it is 2.65 and 0.44, respectively. Drospirenone alone demonstrates high rates of unscheduled bleeding and low rates of scheduled bleeding, whereas the estetrol-drospirenone combination demonstrates a predictable and regular bleeding profile for most users with a high stable rate of scheduled bleeding and a low rate of unscheduled bleeding, reported primarily as spotting only. The adverse event profiles and discontinuation rates owing to adverse events are comparable, and no clinically significant effects were observed on metabolic parameters with either product. Hemostatic assays for drospirenone do not fully evaluate all parameters although the testing that is available suggests negligible effects, whereas validated hemostatic assays demonstrate that the estetrol-drospirenone combination has limited impact on hemostasis. The introduction of 4 mg drospirenone and 15 mg estetrol with 3 mg drospirenone are valuable additions to the contraceptive market. Adding estetrol to 3 mg drospirenone provides advantages of contraceptive efficacy and a regular, predictable bleeding profile with minimal impact on hemostasis parameters.

4.
Eur J Contracept Reprod Health Care ; 28(1): 36-43, 2023 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-36724207

RESUMEN

OBJECTIVES: Progestins used in contraception are either components of combined hormonal contraceptives or are used as a single active ingredient. Progestins are highly effective in long-term contraception and have a very good safety profile with very few contraindications. METHODS: An oestrogen-free ovulation inhibitor POP has been authorised in the USA and the EU. It contains 4 mg of drospirenone (DRSP). The hormone administration regimen of 24 days followed by a 4-day hormone-free period was chosen to improve bleeding control and to maintain oestradiol concentrations at early follicular- phase levels, preventing oestrogen deficiency. RESULTS: Clinical trials have demonstrated high contraceptive effectiveness, a very low risk of cardiovascular risk events and a favourable bleeding pattern. Due to the long half-life of DRSP (30-34 h), the effectiveness is maintained even in case of a forgotten pill on a single occasion. Studies involving deliberate 4 days in one cycle 24-hour delays in taking a pill have demonstrated that ovulation inhibition is maintained if a single pill is missed. CONCLUSIONS: This review article will describe the clinical impact in the daily use of the 4 mg DRSP only pill and the resulting data on the effectiveness and safety of this hormonal contraceptive.


The 4 mg drospirenone-only pill improves the bleeding profile in comparison to 0.075 mg desogestrel and achieves high contraceptive efficacy even with a 24 h missed pill window.


Asunto(s)
Androstenos , Progestinas , Femenino , Humanos , Androstenos/efectos adversos , Anticoncepción/métodos , Estradiol , Anticonceptivos , Anticonceptivos Orales Combinados
5.
Ceska Gynekol ; 87(6): 440-452, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36543594

RESUMEN

PURPOSE: Despite considerable advances in recently developed combined oral contraceptives (COCs), resulting in lower rates of adverse events while maintaining contraceptive efficacy, there is interest in further innovation. MATERIALS AND METHODS: Estetrol (E4), a native oestrogen, and progestin drospirenone (DRSP) were combined in a new COC. A European expert panel reviewed the pharmacology, efficacy, and safety and tolerability of this combination. Their findings are presented as a narrative review. RESULTS: E4 15mg/DRSP 3 mg in a 24/4 regimen provided effective contraception with good cycle control, characterised by a predictable regular bleeding pattern and minimal unscheduled bleeding, together with a good safety profile. The combination was associated with high user satisfaction, wellbeing, and minimal changes in body weight. The effects on endocrine and metabolic parameters were limited, and the combination was found to have a limited impact on liver function and lipid and carbohydrate metabolism. Moreover, its effect on several haemostatic parameters was lower than that of comparators containing ethinyl oestradiol (EE) 20mg/DRSP 3 mg and EE 30mg/levonorgestrel 150mg. CONCLUSION: E4 15 mg/DRSP 3 mg provides safe and effective contraception, with high user satisfaction and predictable bleeding. Further research will evaluate the long-term safety of the COC.


Asunto(s)
Anticonceptivos Orales Combinados , Estetrol , Femenino , Humanos , Anticoncepción/métodos , Anticonceptivos Orales Combinados/efectos adversos , Etinilestradiol/efectos adversos
6.
Eur J Contracept Reprod Health Care ; 27(5): 373-383, 2022 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-35862627

RESUMEN

PURPOSE: Despite considerable advances in recently developed combined oral contraceptives (COCs), resulting in lower rates of adverse events while maintaining contraceptive efficacy, there is interest in further innovation. MATERIALS AND METHODS: Estetrol (E4), a native oestrogen, and progestin drospirenone (DRSP) were combined in a new COC. A European expert panel reviewed the pharmacology, efficacy, and safety and tolerability of this combination. Their findings are presented as a narrative review. RESULTS: E4 15 mg/DRSP 3 mg in a 24/4 regimen provided effective contraception with good cycle control, characterised by a predictable regular bleeding pattern and minimal unscheduled bleeding, together with a good safety profile. The combination was associated with high user satisfaction, well-being, and minimal changes in body weight. The effects on endocrine and metabolic parameters were limited, and the combination was found to have a limited impact on liver function and lipid and carbohydrate metabolism. Moreover, its effect on several haemostatic parameters was lower than that of comparators containing ethinyl oestradiol (EE) 20 µg/DRSP 3 mg and EE 30 µg/levonorgestrel 150 µg. CONCLUSION: E4 15 mg/DRSP 3 mg provides safe and effective contraception, with high user satisfaction and predictable bleeding. Further research will evaluate the long-term safety of the COC.


Asunto(s)
Estetrol , Hemostáticos , Anticonceptivos Orales Combinados/efectos adversos , Estetrol/efectos adversos , Estrógenos , Etinilestradiol/efectos adversos , Femenino , Humanos , Levonorgestrel/efectos adversos , Lípidos , Progestinas
7.
Acta Obstet Gynecol Scand ; 100(4): 614-618, 2021 04.
Artículo en Inglés | MEDLINE | ID: mdl-33544887

RESUMEN

Since its introduction in 1990, the levonorgestrel-releasing intrauterine system (LNG-IUS) has played a key role in shaping the healthcare landscape of women. Here we explore the development of the first LNG-IUS (Mirena®) and the early clinical trials that demonstrated its potential. We highlight the contraceptive and therapeutic benefits of Mirena®, and discuss how clinical practice has been changed since the introduction of LNG-IUS and other long-acting reversible contraceptive methods. The history of Mirena® is rich in innovation and has also paved the way to the development of smaller intrauterine systems with lower hormone doses. Along with Mirena®, these newer LNG-IUS contribute to improving contraceptive choices for women, allowing them to select the option that is right for them and that meets their needs no matter their age, parity or circumstances.


Asunto(s)
Levonorgestrel/historia , Salud de la Mujer/historia , Adulto , Difusión de Innovaciones , Femenino , Historia del Siglo XX , Historia del Siglo XXI , Humanos , Embarazo
8.
BMJ Sex Reprod Health ; 47(3): 228-230, 2021 07.
Artículo en Inglés | MEDLINE | ID: mdl-33514606

RESUMEN

Universal access to sexual and reproductive health services is essential to facilitate the empowerment of women and achievement of gender equality. Increasing access to modern methods of contraception can reduce the incidence of unplanned pregnancy and decrease maternal mortality. Long-acting reversible contraceptives (LARCs) offer high contraceptive efficacy as well as cost-efficacy, providing benefits for both women and healthcare systems. The levonorgestrel-releasing intrauterine system (LNG-IUS) first became available in 1990 with the introduction of Mirena (LNG-IUS 20), a highly effective contraceptive which can reduce menstrual blood loss and provide other therapeutic benefits. The impact of the LNG-IUS on society has been wide ranging, including decreasing the need for abortion, reducing the number of surgical sterilisation procedures performed, as well as reducing the number of hysterectomies carried out for issues such as heavy menstrual bleeding (HMB). In the context of the COVID-19 pandemic, Mirena can provide a treatment option for women with gynaecological issues such as HMB without organic pathology, minimising exposure to the hospital environment and reducing waiting times for surgical appointments. Looking to the future, research and development in the field of the LNG-IUS continues to expand our understanding of these contraceptives in clinical practice and offers the potential to further expand the choices available to women, allowing them to select the option that best meets their needs.


Asunto(s)
Anticonceptivos Femeninos/uso terapéutico , Dispositivos Intrauterinos Medicados/tendencias , Levonorgestrel/uso terapéutico , Salud de la Mujer/tendencias , COVID-19 , Preparaciones de Acción Retardada/uso terapéutico , Femenino , Humanos , Salud Pública/tendencias
9.
J Am Soc Cytopathol ; 8(6): 324-332, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-31523013

RESUMEN

INTRODUCTION: A historical audit of 30 post-treatment cervical cancers (10% of 289 cancers, 1999-2016) compared with a one-year-equivalent control group treated for cervical intraepithelial neoplasia (CIN) grade 3 (n = 164). MATERIALS AND METHODS: We compared history and follow up of cancer patients and controls and reviewed initial excision biopsies preceding cancer and, in 41% of controls, high-grade recurrence (n = 17) or consistently negative follow-up (n = 51). RESULTS: Either abnormal post-excision cytology without high-risk human papillomavirus (hrHPV) tests or immediate re-excision was recorded in 70% (19 of 27) of patients with squamous cell carcinoma (SCC). Negative investigations including cytology, colposcopy, re-excision, hysteroscopy, hrHPV, and/or treatment default were recorded in 83% (25 of 30) of all cancers. The mean interval between initial excision and cancer diagnosis was 79.8 ± 30.1 months versus 11.2 ± 30.1 months for CIN3 recurrence. Eight, 13, and 9 patients with cancer had initial excision at age 20-34, 35-49, and 50+ years, respectively, compared with 71%, 23%, and 5% of controls. CIN3 more often preceded SCC than CIN2 (22:1); 5 of 30 initial excisions were originally reported as negative after severe dyskaryosis. No SCC or CIN3 recurrence followed complete excision. Depth of CIN3 2+ mm (20 of 82 reviewed) was strongly associated with cancer/high-grade recurrence or early stromal invasion on review (18 of 20; 90%). Discrepancies were found on review in 10% of biopsies and as occasional abnormal cells in 9 of 34 cytology slides. CONCLUSIONS: Residual disease may be inconspicuous or absent on cytology, colposcopy, and/or histology. Management taking account of risk of recurrence (age, CIN3 depth, incomplete initial excision) could avoid some post-treatment cancers.


Asunto(s)
Displasia del Cuello del Útero/terapia , Neoplasias del Cuello Uterino/etiología , Neoplasias del Cuello Uterino/patología , Adulto , Factores de Edad , Biopsia , Estudios de Casos y Controles , Femenino , Estudios de Seguimiento , Humanos , Márgenes de Escisión , Persona de Mediana Edad , Clasificación del Tumor , Invasividad Neoplásica , Recurrencia Local de Neoplasia/patología , Células del Estroma/patología , Neoplasias del Cuello Uterino/diagnóstico , Adulto Joven
10.
Eur J Contracept Reprod Health Care ; 21(6): 486-495, 2016 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-27681868

RESUMEN

Religion is embedded in the culture of all societies. It influences matters of morality, ideology and decision making, which concern every human being at some point in their life. Although the different religions often lack a united view on matters such contraception and abortion, there is sometimes some dogmatic overlap when general religious principles are subject to the influence of local customs. Immigration and population flow add further complexities to societal views on reproductive issues. For example, present day Europe has recently faced a dramatic increase in refugee influx, which raises questions about the health care of immigrants and the effects of cultural and religious differences on reproductive health. Religious beliefs on family planning in, for example, Christianity, Judaism, Islam and Hinduism have grown from different backgrounds and perspectives. Understanding these differences may result in more culturally competent delivery of care by health care providers. This paper presents the teachings of the most widespread religions in Europe with regard to contraception and reproduction.


Asunto(s)
Anticoncepción/psicología , Emigrantes e Inmigrantes/psicología , Servicios de Planificación Familiar , Religión y Psicología , Cristianismo/psicología , Anticoncepción/métodos , Anticonceptivos , Toma de Decisiones , Europa (Continente) , Servicios de Planificación Familiar/métodos , Femenino , Hinduismo/psicología , Humanos , Islamismo/psicología , Judaísmo/psicología , Masculino , Principios Morales , Refugiados/psicología , Religión
11.
Sensors (Basel) ; 16(6)2016 Jun 21.
Artículo en Inglés | MEDLINE | ID: mdl-27338402

RESUMEN

The safety of the driving experience and manoeuvrability of a vehicle can be improved by detecting the strain in tyres. To measure strain accurately in rubber, the strain sensor needs to be flexible so that it does not deform the medium that it is measuring. In this work, a novel flexible bond wire capacitive strain sensor for measuring the strain in tyres is developed, fabricated and calibrated. An array of 25 micron diameter wire bonds in an approximately 8 mm × 8 mm area is built to create an interdigitated structure, which consists of 50 wire loops resulting in 49 capacitor pairs in parallel. Laser machining was used to pattern copper on a flexible printed circuit board PCB to make the bond pads for the wire attachment. The wire array was finally packaged and embedded in polydimethylsiloxane (PDMS), which acts as the structural material that is strained. The capacitance of the device is in a linear like relationship with respect to the strain, which can measure the strain up to at least ±60,000 micro-strain (±6%) with a resolution of ~132 micro-strain (0.013%). In-tyre testing under static loading has shown the ability of the sensor to measure large tyre strains. The technology used for sensor fabrication lends itself to mass production and so the design is considered to be consistent with low cost commercialisable strain sensing technology.

12.
Sensors (Basel) ; 14(6): 10306-45, 2014 Jun 11.
Artículo en Inglés | MEDLINE | ID: mdl-24922457

RESUMEN

This article presents an overview on the state of the art of Tyre Pressure Monitoring System related technologies. This includes examining the latest pressure sensing methods and comparing different types of pressure transducers, particularly their power consumption and measuring range. Having the aim of this research to investigate possible means to obtain a tyre condition monitoring system (TCMS) powered by energy harvesting, various approaches of energy harvesting techniques were evaluated to determine which approach is the most applicable for generating energy within the pneumatic tyre domain and under rolling tyre dynamic conditions. This article starts with an historical review of pneumatic tyre development and demonstrates the reasons and explains the need for using a tyre condition monitoring system. Following this, different tyre pressure measurement approaches are compared in order to determine what type of pressure sensor is best to consider in the research proposal plan. Then possible energy harvesting means inside land vehicle pneumatic tyres are reviewed. Following this, state of the art battery-less tyre pressure monitoring systems developed by individual researchers or by world leading tyre manufacturers are presented. Finally conclusions are drawn based on the reviewed documents cited in this article and a research proposal plan is presented.

13.
Sensors (Basel) ; 14(1): 188-211, 2013 Dec 23.
Artículo en Inglés | MEDLINE | ID: mdl-24366177

RESUMEN

Extracting energy from ambient vibration to power wireless sensor nodes has been an attractive area of research, particularly in the automotive monitoring field. This article reports the design, analysis and testing of a vibration energy harvesting device based on a miniature asymmetric air-spaced cantilever. The developed design offers high power density, and delivers electric power that is sufficient to support most wireless sensor nodes for structural health monitoring (SHM) applications. The optimized design underwent three evolutionary steps, starting from a simple cantilever design, going through an air-spaced cantilever, and ending up with an optimized air-spaced geometry with boosted power density level. Finite Element Analysis (FEA) was used as an initial tool to compare the three geometries' stiffness (K), output open-circuit voltage (V(ave)), and average normal strain in the piezoelectric transducer (ε(ave)) that directly affect its output voltage. Experimental tests were also carried out in order to examine the energy harvesting level in each of the three designs. The experimental results show how to boost the power output level in a thin air-spaced cantilever beam for energy within the same space envelope. The developed thin air-spaced cantilever (8.37 cm3), has a maximum power output of 2.05 mW (H = 29.29 µJ/cycle).


Asunto(s)
Transductores , Suministros de Energía Eléctrica , Diseño de Equipo , Análisis de Elementos Finitos , Vibración
17.
Best Pract Res Clin Obstet Gynaecol ; 24(4): 443-55, 2010 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-20335073

RESUMEN

Contraceptive failure contributes to a substantial proportion of unintended pregnancy, particularly in the developed world. A number of socio-demographic factors seem to impact on the risk of a woman experiencing contraceptive failure. Many of the issues exist across cultural boundaries and are complex to address. In discussing the failure rates for individual contraceptive methods, this article will highlight the advantage of improving uptake of long-acting reversible methods of contraception which have a high efficacy and are less user-dependent than many of the other available methods.


Asunto(s)
Conducta Anticonceptiva , Dispositivos Anticonceptivos/estadística & datos numéricos , Embarazo no Planeado , Adolescente , Adulto , Factores de Edad , Anticonceptivos Femeninos/uso terapéutico , Implantes de Medicamentos/uso terapéutico , Falla de Equipo , Femenino , Conocimientos, Actitudes y Práctica en Salud , Humanos , Embarazo , Embarazo no Deseado , Adulto Joven
20.
Obstet Gynecol ; 113(5): 1104-1116, 2009 May.
Artículo en Inglés | MEDLINE | ID: mdl-19384127

RESUMEN

OBJECTIVE: To compare the effects of the levonorgestrel intrauterine system and endometrial ablation in reducing heavy menstrual bleeding. DATA SOURCES: Medline and EMBASE were searched online using Ovid up to January 2009, as well as the reference lists of published articles, to identify randomized controlled trials comparing the levonorgestrel intrauterine system with endometrial ablation in the treatment of heavy menstrual bleeding. METHODS OF STUDY SELECTION: This systematic review and meta-analysis was restricted to randomized controlled trials in which menstrual blood loss was reported using pictorial blood loss assessment chart scores. TABULATION, INTEGRATION, AND RESULTS: Six randomized controlled trials that included 390 women (levonorgestrel intrauterine system, n=196; endometrial ablation, n=194) were retrieved. Three studies pertained to first-generation endometrial ablation (manual hysteroscopy) and three to second-generation endometrial ablation (thermal balloon). Study characteristics and quality were recorded for each study. Data on the effect of treatment on pictorial blood loss assessment chart scores were abstracted, integrated with meta-analysis techniques, and presented as weighted mean differences. Both treatment modalities were associated with similar reductions in menstrual blood loss after 6 months (weighted mean difference, -31.96 pictorial blood loss assessment chart score [95% confidence interval (CI), -65.96 to 2.04]), 12 months (weighted mean difference, 7.45 pictorial blood loss assessment chart score [95% CI, -12.37 to 27.26]), and 24 months (weighted mean difference, -26.70 pictorial blood loss assessment chart score [95% CI, -78.54 to 25.15]). In addition, both treatments were generally associated with similar improvements in quality of life in five studies that reported this as an outcome. No major complications occurred with either treatment modality in these small trials. CONCLUSION: Based on the meta-analysis of six randomized clinical trials, the efficacy of the levonorgestrel intrauterine system in the management of heavy menstrual bleeding appears to have similar therapeutic effects to that of endometrial ablation up to 2 years after treatment.


Asunto(s)
Anticonceptivos Femeninos/uso terapéutico , Técnicas de Ablación Endometrial , Dispositivos Intrauterinos Medicados , Menorragia/terapia , Femenino , Humanos
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